https://www.icyphoenix.com/viewtopic.php?f=17&t=2567&p=19206#p19206
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Mighty Gorgon
Sun 02 Sep, 2007 10:05

Re: phpBB3 Release Candidate 4 (RC4) released
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I guess you may try first using the upgrade procedure in phpBB 3 and if it doesn't work, then you can downgrade IP to phpBB 2 and then upgrade again to phpBB 3.

You will lose all IP features in both cases. :wink:


